GMC Computers & Internet - Answered Questions & Fixed Issues

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Taking one out and putting one in a steering column in a 1984 gmc full size jimmy thnx
Just a suggestion saw where you said video best way so may I suggest you tube videos simple to followif not let us know we can send it word and some drawings to you Thank You
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9/18/2022 3:42:59 AM • GMC Computers &... • Answered on Sep 18, 2022 • 47 views
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2004 gmc envoy xuv tail gate and window and roof wont work
Check that (power) at the connector to the tail gate.
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7/20/2017 10:18:52 PM • GMC Computers &... • Answered on Jul 20, 2017 • 277 views
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2012 yukon xl 15 navigation screen black out
And function work but screen is just blank? If so you must remove the unit from the dash and have it repaired by a GM approved repair center. Google "GM built in GPS repair"
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1/10/2017 9:13:46 AM • GMC 2012 Yukon... • Answered on Jan 10, 2017 • 117 views
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2004 gmc yukon denali w/ 6000 vortec. Transmission seems to work fine except it won't go back into park.
From experience from a 05 Cadillac Deville that my pops had when he couldn't turn the car off for him be able to remove the key from the ignition, we found out that one of the transmission sensor that control the gearbox had went bad causing the transmission to malfunction. That sensor is more likely the answer to your problem. Dealer charge $500 to replace, if not more. Hope this will help you out..
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1/10/2017 9:16:54 AM • GMC 2004 Yukon... • Answered on Jan 10, 2017 • 140 views
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Why windshield wipers go on randomly and won't turn off with the switch
Check the earth connection from the battery to the body, clean it thoroughly as oxidation (corrosion) causes funny problems, also the connection to the wiper motor, if it has stalk switch ask a electrician to check same
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1/10/2017 9:17:12 AM • GMC 2003 Envoy... • Answered on Jan 10, 2017 • 335 views
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2004 Yukon XL Denali - front passenger door lock, mirror, and window all lost power at same time and remote control for door locks stopped working. is there a fuse for this?
There is no common fuse for each of those. Example: the fuse for the door lock would affect all the locks...same for Windows and mirrors. There is, however a common plug in the wiring of the door. It may be inside the body you will have to trace it back
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1/10/2017 9:18:22 AM • GMC 2004 Yukon... • Answered on Jan 10, 2017 • 322 views
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How do I close a 2003 Envoy sunroof?
I suggest you remove the sunroof fuse and check in the manual for the emergency closing procedure. Often cars with a sliding sunroof are supplied with a small handle for the emergency closing if the power fails. Usually only a couple of screws need removing to access the drive socket.
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1/10/2017 9:25:28 AM • GMC 2003 Envoy... • Answered on Jan 10, 2017 • 1,423 views
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Having problems with heater blower what could it be
I have an idea, but you might wish to call a GMC dealer and check it out. For many years, the heater & defrosters of GM vehicles have used a vacuum source to operate the systems. If that is your problem, the vehicle needs to build up a vacuum in the lines before the heater or defroster will work. It could be a vacuum leak causing the delay. A leak could cause the system of hoses to lose vacuum after you shut it off, and it is building that vacuum back up when you start the car. Repairing the vacuum leak could be quite expensive, as it could require taking the dashboard apart to fix it. God bless our efforts.
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1/10/2017 9:26:27 AM • GMC 2005 Sierra... • Answered on Jan 10, 2017 • 720 views
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Vats number for sierra 2011
call a dealer
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1/10/2017 9:29:51 AM • GMC 2011 Sierra... • Answered on Jan 10, 2017 • 839 views
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Car would not lock with remote fob tried to start the car, the key turned but the vehicle was completely shut down. later tried the fob again and the lights blinked,car started
the fob may need a new battery or need to be replaced. If the fob did not properly deactivate the immobiliser, for whatever reason, then your car would not start. I would have the battery replaced , don't do it yourseld on this occassion, and as a precaution fill the vehicle's battery with electrolute and recaharge it See what happens
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1/10/2017 9:31:09 AM • GMC 2011 Yukon... • Answered on Jan 10, 2017 • 731 views
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I have a 98 gmc jimmy. It says it's in park, but can roll it back and forth like it's in neutral, turn key and nothing happens and have a full battery. Could it be the neutral safety switch?
i wouldnt try,have it towed until you figure out why it wont go into park,there are more than 1 thing wrong if it wont go into park and wont start
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7/13/2015 1:34:32 AM • GMC 98-04 Jimmy... • Answered on Jul 13, 2015 • 840 views
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Where is the rear hvac relay located
In the relay box under the hood
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6/21/2015 4:06:20 AM • GMC 2004 Yukon... • Answered on Jun 21, 2015 • 582 views
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Vehicle sometimes shut while driving, IP lites flashing before shutting off
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6/17/2015 7:46:36 PM • GMC 98-04 Jimmy... • Answered on Jun 17, 2015 • 599 views
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CAN I MANUEL TAKE OFF THE SERVICE ENGINE LIGHT OFF ON MY 2003 GMC ENVOY?
if you take off both battery cables and touch them together for one minute it will reset the lite . but make shure they are disconnected from the battery !!
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4/16/2015 7:28:54 PM • GMC 2003 Envoy... • Answered on Apr 16, 2015 • 733 views
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2004 Yukon 6.0 V8 instrument cluster problem
No DTC'S stored any modules ? Any parasitic drain on the battery ? Does scan tool communicate with the instrument cluster ? Do you know about GM power modes
  1. Access the Class 2 Power Mode in the Diagnostic Circuit Check on the scan tool.
  2. Rotate the ignition switch through all positions while observing the Ignition Switch Power Mode parameter.
Does the Ignition Switch parameter reading match the ignition switch position for all switch positions? What type scan tool are you using ? Can yours communicate with all the modules on the vehicle ? Select the display DTCs function on the scan tool for the following control modules: ?€¢ Transfer Case Electronic Control (TREC)

?€¢ Body Control Module (BCM)

?€¢ Electronic Brake Control Module (EBCM)

?€¢ Instrument Panel Cluster (IPC)

?€¢ Powertrain Control Module (PCM)

?€¢ Sensing and Diagnostic Module (SDM)

Does the scan tool display any DTCs for the control modules listed above? Does the scan tool display any DTCs which begin with a "U"?

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4/13/2015 5:47:54 PM • GMC 2004 Yukon... • Answered on Apr 13, 2015 • 818 views
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How do you remove the front bumper cover from a 2012 gmc sierra 1500 work truck with a 5.3 L engine?
three bolts on either side and a bunch of clips,refer to pics 25563986-uihqep5mbsoykbnqjc0zl4tn-3-0.jpg 25563986-uihqep5mbsoykbnqjc0zl4tn-3-2.jpg 25563986-uihqep5mbsoykbnqjc0zl4tn-3-5.jpg
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3/13/2015 6:18:10 PM • GMC 2012 Sierra... • Answered on Mar 13, 2015 • 1,216 views
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How do you remove the front bumper cover from a 2012 gmc sierra 1500 work truck with a 5.3 L engine
go on line to www.youtube.com www.howto.com look on line: you need to look up service manuals for year, make, model, how to removal and installation front bumper. you can check you local auto parts center, go to the counter personnel ask for a copy of removal print out of bumper in the database, even the diagram of the parts description. by seeing the layout of the parts diagram you will see where all the bolts are or a good idea where to look and the will have part size or tools needed so you can do the job. look on line, look up service manual 2012 gmc sierra 1500 work truck. after find site than need to look for installation and removal front bumpers go to local library, automotive shop, friends work on trucks or cars, thank you rod
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3/13/2015 6:17:22 PM • GMC 2012 Sierra... • Answered on Mar 13, 2015 • 665 views
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Where is the fuse for front heated seats for 2004 yukon denali
Open drivers door and take off the small cover on the side of the dash. It is ignition fuse 3
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2/10/2015 1:48:08 AM • GMC 2004 Yukon... • Answered on Feb 10, 2015 • 2,265 views
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Rear air suspention bags fuse location
Re-categorize in computer should be in automotive. Terry
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2/5/2015 9:37:11 PM • GMC 02 03 04 05... • Answered on Feb 05, 2015 • 239 views
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My instrument cluster on a 2004 Yukon denali stopped working all of it is it a relay I am not seeing
you have to trace the wiring . may be only a loose wire.
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1/19/2015 7:42:59 PM • GMC 2004 Yukon... • Answered on Jan 19, 2015 • 608 views
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